sulcus
Americannoun
-
sulci
plural
-
a furrow or groove.
-
Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.
noun
-
a linear groove, furrow, or slight depression
-
any of the narrow grooves on the surface of the brain that mark the cerebral convolutions Compare fissure
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of sulcus
1655–65; Latin: furrow
Compare meaning
How does sulcus compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
These patterns were based on sulcus depth and cortical thickness, which describe the folding of the brain surface and the thickness of the brain's outer layer.
From Science Daily ● Jan. 4, 2026
"You can think about the intraparietal sulcus as having two knobs on a radio dial: one that adjusts focusing and one that adjusts filtering," Ritz said.
From Science Daily ● Mar. 8, 2024
The lateral sulcus that separates the temporal lobe from the other regions is one such landmark.
From Textbooks ● Jun. 19, 2013
Anterior to the central sulcus is the frontal lobe, which is primarily associated with motor functions.
From Textbooks ● Jun. 19, 2013
It is rather robust, very much recurved and grooved by a deep vertical sulcus upon its antero-internal face.
From On The Affinities of Leptarctus primus of Leidy American Museum of Natural History, Vol. VI, Article VIII, pp. 229-331. by Jacob Lawson Wortman
Soccer players who headed the ball at high levels showed abnormality of the brain's white matter adjacent to sulci, which are deep grooves in the brain's surface.
From Science Daily ● Nov. 27, 2024
Two chimp brothers would have more similar sulci than two human brothers, for instance.
From Science Magazine ● Nov. 16, 2015
The surface of the brain can be mapped on the basis of the locations of large gyri and sulci.
From Textbooks ● Jun. 19, 2013
Coronary vessel branches that remain on the surface of the artery and follow the sulci are called epicardial coronary arteries.
From Textbooks ● Jun. 19, 2013
These sulci are not, however, consequent upon the drying, because they are equally apparent and constant when the specimen has been immersed in fluid.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
